{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46411", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T21:04:10.933Z", "datePublished": "2026-06-09T23:01:33.212Z", "dateUpdated": "2026-06-09T23:01:33.212Z"}, "containers": {"cna": {"title": "FlashMQ: Client can trigger uncaught exception on FlashMQ 1.26.1 and older", "problemTypes": [{"descriptions": [{"cweId": "CWE-248", "lang": "en", "description": "CWE-248: Uncaught Exception", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/halfgaar/FlashMQ/security/advisories/GHSA-g35r-265r-rxrh", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/halfgaar/FlashMQ/security/advisories/GHSA-g35r-265r-rxrh"}, {"name": "https://github.com/halfgaar/FlashMQ/commit/29e08f7b97b6e3f96db923c2b6a260c47b49c195", "tags": ["x_refsource_MISC"], "url": "https://github.com/halfgaar/FlashMQ/commit/29e08f7b97b6e3f96db923c2b6a260c47b49c195"}, {"name": "https://github.com/halfgaar/FlashMQ/releases/tag/v1.26.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/halfgaar/FlashMQ/releases/tag/v1.26.2"}], "affected": [{"vendor": "halfgaar", "product": "FlashMQ", "versions": [{"version": "< 1.26.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-09T23:01:33.212Z"}, "descriptions": [{"lang": "en", "value": "FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.26.2, authorized clients have the ability to exceed the permitted over-commit of their write buffer and triggering an internal safe-guard exception. This exception was in a path that was not catchable, and therefore causes a server abort. This issue has been patched in version 1.26.2."}], "source": {"advisory": "GHSA-g35r-265r-rxrh", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.26.2, authorized clients have the ability to exceed the permitted over-commit of their write buffer and triggering an internal safe-guard exception. This exception was in a path that was not catchable, and therefore causes a server abort. This issue has been patched in version 1.26.2."}], "id": "CVE-2026-46411", "lastModified": "2026-06-10T00:16:53.407", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-06-10T00:16:53.407", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/halfgaar/FlashMQ/commit/29e08f7b97b6e3f96db923c2b6a260c47b49c195"}, {"source": "security-advisories@github.com", "url": "https://github.com/halfgaar/FlashMQ/releases/tag/v1.26.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/halfgaar/FlashMQ/security/advisories/GHSA-g35r-265r-rxrh"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-248"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.26.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FlashMQ", "source": "cna", "vendor": "halfgaar"}, "product": "flashmq", "vendor": "halfgaar"}], "created": "2026-06-10T01:00:12.979179+00:00", "updated": "2026-06-10T02:15:19.177932+00:00", "vendors": ["halfgaar", "halfgaar$PRODUCT$flashmq"]}